Question

tính:

(4/10)^5 x (2/5)^4

chỉ cần viết psố với lũy thừa thôi

Answer 1

\(\left(\dfrac{4}{10}\right)^5.\left(\dfrac{2}{5}\right)^4=\left(\dfrac{2}{5}\right)^5.\left(\dfrac{2}{5}\right)^4=\left(\dfrac{2}{5}\right)^{5+4}=\left(\dfrac{2}{5}\right)^9\)

Answer 2

`(4/10)^5 . (2/5)^4`

`= (2/5)^5  . (2/5)^4`

`= (2/5)^(5+4)`

`= (2/5)^9`